44caliber | fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832

Analysis

max time kernel
4294178s
max time network
120s
platform
windows7_x64
resource
win7-20220223-en
submitted
01-03-2022 18:14

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General

Target

fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe
Size

274KB
MD5

6390e7d62943306f51ad16cfffcd4196
SHA1

8250f8e13c32feb805f774e3c5ab7dff8eef804d
SHA256

fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832
SHA512

31231e9e28c30b884af16a2d72ae8f00ed878e12a3a21d99a9d59c4b730e95f63baf8bde1526c52709069bb40c7158867d762301d4e1c0858405772713654a6a

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/943921740650807366/Qusx1YNKTBukFikBPU2oPXE3VgLnpp3XmWajMEfaOIUQ0SkEYDsXQCXM-s64Bb_sTQOY

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 freegeoip.app
5 freegeoip.app

flow	ioc
4	freegeoip.app
5	freegeoip.app

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe

pid	process
1844	fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe
1844	fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe
1844	fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe
1844	fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe

description pid process

Token: SeDebugPrivilege 1844 fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe

description	pid	process
Token: SeDebugPrivilege	1844	fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe

C:\Users\Admin\AppData\Local\Temp\fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe
"C:\Users\Admin\AppData\Local\Temp\fa42a439f4c2999f1b056e3ee061b4e64fc250125cfc59204112d07de3219832.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1844

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1844-54-0x00000000010A0000-0x00000000010EA000-memory.dmp

Filesize
296KB

Download
memory/1844-55-0x000007FEF5BA3000-0x000007FEF5BA4000-memory.dmp

Filesize
4KB

Download
memory/1844-56-0x000000001B060000-0x000000001B062000-memory.dmp

Filesize
8KB

Download